Dialysis | Nucleus Health
Nucleus Medical Media・3 minutes read
Dialysis is a crucial medical procedure for removing waste from the blood when the kidneys fail, with hemodialysis using a machine to filter blood outside the body and peritoneal dialysis utilizing a catheter for internal cleansing. Each method has specific processes and requirements, providing essential treatment to prevent the harmful effects of kidney dysfunction.
Insights
- Dialysis is a crucial medical procedure for individuals with kidney failure, as it helps eliminate harmful waste from the blood and prevent serious health complications. There are two primary types: hemodialysis, which uses a machine to filter blood outside the body through a vascular access point, and peritoneal dialysis, which cleans the blood using a special solution introduced into the abdomen, allowing the body to filter waste internally.
- Hemodialysis requires a surgical procedure to create a connection between an artery and a vein, enabling blood flow through the machine, while peritoneal dialysis involves the surgical placement of a catheter for the introduction and removal of dialysate from the abdominal cavity. Each method offers distinct approaches to managing kidney failure, tailored to the patient’s medical needs and lifestyle preferences.
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Recent questions
What is dialysis in simple terms?
Dialysis is a medical treatment that helps remove waste and excess fluid from the blood when the kidneys are not working properly. It is essential for individuals whose kidneys cannot filter blood effectively, preventing harmful substances from accumulating in the body. This procedure can help manage symptoms and improve overall health, allowing patients to maintain a better quality of life despite kidney failure.
How does hemodialysis work?
Hemodialysis works by using a machine called a dialyser to filter the blood outside the body. During the procedure, blood is drawn from the body through a vascular access site, which can be created using an arteriovenous graft or fistula. The blood then flows through the dialyser, where it is cleaned of waste products and excess fluids before being returned to the body. This process typically requires two needles to facilitate the flow of blood, ensuring that the body remains free of harmful substances.
What is peritoneal dialysis?
Peritoneal dialysis is a type of dialysis that cleans the blood using the body's peritoneal membrane, which lines the abdominal cavity. A catheter is surgically placed near the belly button to allow for the introduction of a special fluid called dialysate into the abdomen. This fluid absorbs waste products and excess fluids from the blood through the peritoneal membrane. After a specified time, the used dialysate is drained out, completing the exchange process. This method allows patients to perform dialysis at home and offers more flexibility in their treatment schedule.
Why is dialysis necessary?
Dialysis is necessary for individuals with kidney failure, a condition where the kidneys can no longer effectively filter waste products and excess fluids from the blood. Without dialysis, harmful substances can build up in the body, leading to serious health complications such as increased blood pressure, electrolyte imbalances, and other life-threatening issues. By performing dialysis, patients can manage these risks and maintain their health, allowing them to live longer and more fulfilling lives despite their kidney condition.
What are the types of dialysis?
There are two main types of dialysis: hemodialysis and peritoneal dialysis. Hemodialysis involves using a machine to filter blood outside the body, while peritoneal dialysis utilizes the peritoneal membrane within the abdomen to clean the blood. Each type has its own procedures and benefits, allowing healthcare providers to tailor treatment based on the patient's specific needs and lifestyle. Understanding these options is crucial for patients to make informed decisions about their kidney care and overall health management.
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Summary
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Understanding Dialysis Types and Procedures
- Dialysis is a medical procedure recommended by doctors to remove waste products from the blood when kidneys are not functioning properly, which can lead to harmful waste accumulation, increased blood pressure, and other health issues. There are two main types of dialysis: hemodialysis and peritoneal dialysis. In hemodialysis, a machine called a dialyser cleans the blood outside the body, requiring a vascular access site created through either an arteriovenous graft or fistula, which involves a small incision and the insertion of a soft plastic tube or direct connection of an artery to a vein. The process involves inserting two needles into the access site, allowing blood to flow through the dialyser where it is filtered before returning to the body.
- In peritoneal dialysis, a catheter is surgically implanted near the belly button to facilitate the exchange of dialysate, which cleans the blood without removing it from the body. Each session, known as an exchange, involves filling the abdomen with dialysate for a time specified by the doctor, allowing waste products and excess fluid to be drawn into the dialysate through the peritoneal membrane. After the designated time, the used dialysate drains into a disposable collection bag, completing the process.
